Coil Interface Block,GM Dual Tower Coils

This module goes between the factory GM ignition module and coils.

PART# 8870

Suggested Retail: $50.94
Your Price:$45.85
Free Shipping on orders over $100*


The module has color coded wires that connect to the DIS wiring and are molded using Dupont Rynite for its high di­electric strength and connect directly to the factory terminals.


Emission Code1
WarningCalifornia Proposition 65

Tech Resources


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
WARNING FOR 8870: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
*Free Shipping & Handling only offered to the continental US on orders over $100.